diff options
Diffstat (limited to 'src/com/android/calculator2/BoundedRational.java')
-rw-r--r-- | src/com/android/calculator2/BoundedRational.java | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/src/com/android/calculator2/BoundedRational.java b/src/com/android/calculator2/BoundedRational.java index ee2ee92..a6dd6d9 100644 --- a/src/com/android/calculator2/BoundedRational.java +++ b/src/com/android/calculator2/BoundedRational.java @@ -229,6 +229,14 @@ public class BoundedRational { return null; } + private static BoundedRational map0to1(BoundedRational r) { + if (r == null) return null; + if (r.mNum.equals(BigInteger.ZERO)) { + return ONE; + } + return null; + } + private static BoundedRational map1to0(BoundedRational r) { if (r == null) return null; if (r.mNum.equals(r.mDen)) { @@ -345,12 +353,7 @@ public class BoundedRational { } public static BoundedRational cos(BoundedRational r) { - // Maps 0 to 1, null otherwise - if (r == null) return null; - if (r.mNum.equals(BigInteger.ZERO)) { - return ONE; - } - return null; + return map0to1(r); } public static BoundedRational degreeCos(BoundedRational r) { @@ -403,6 +406,10 @@ public class BoundedRational { return map1to0(r); } + public static BoundedRational exp(BoundedRational r) { + return map0to1(r); + } + // Return the base 10 log of n, if n is a power of 10, -1 otherwise. // n must be positive. private static long b10Log(BigInteger n) { |